1045 papers
This study investigates the synergistic effects of additives and the dual regulatory mechanism of temperature on AFFF foam drainage kinetics to establish a quantitative relationship with fire-extinguishing performance, ultimately enabling the successful design of high-efficiency, eco-friendly foam formulations that meet national standards.
This study employs a Monte Carlo reliability framework to analyze 240 paired compressive-strength records from 30 studies, revealing that while biochar dosages between 2.5% and 5% generally offer the highest reliability, no universal optimum exists due to significant variability driven by matrix design, feedstock, and curing conditions.
This study reveals that the low-friction state of amorphous carbon films arises from the synergistic effect of coexisting carbon nanostructures, such as graphene scrolls and nanotubes, rather than graphitization alone, with the introduction of scrollable nano-particles proving particularly effective in further reducing the friction coefficient.
This study investigates how fabrication parameters, specifically firing temperature and precious metal loading, influence the structure and CO oxidation performance of three-way catalyst microparticles for gasoline particulate filters, revealing that while higher metal loading and TWC/GPF integration enhance activity, sintering and short gas-catalyst contact times can increase light-off temperatures, alongside findings that oxygen transport is uniform within ceria-zirconia regions but surface sites play a more dominant role in the purification reaction.
This paper reports the facile fabrication of C60 fullerene nanowhisker gas sensors and elucidates a novel room-temperature sensing mechanism where polar gas molecules induce conductivity changes through dipole-induced dipole interactions with the C60 p-electron system, resulting in selective detection of polar gases over non-polar ones.
This study presents the first UHPLC-PDA-MS/MS-based phytochemical profiling of *Aloe koenenii* leaf epidermis, identifying a core set of shared anthrone and chromone metabolites with *Aloe vera* while highlighting species-specific differences that support chemotaxonomic classification and future quality control efforts.
This study demonstrates that optimizing soda pulping of sugarcane bagasse using a high liquid-to-solid ratio and a new non-wood displacement digester system yields high-quality pulp by significantly degrading syringyl units and cleaving key lignin linkages, thereby facilitating the dissolution of lignin primarily from the compound middle lamella and cell corner middle lamella.
This study reports a highly efficient, safe, and cost-effective room-temperature hydrogen production system using sodium hypophosphite and a synergistic CuPd/TiO2 catalyst, which achieves 100% conversion within 30 minutes through enhanced metal dispersion and electronic interactions that lower activation energy.
This study demonstrates that while repeated thermal cycling degrades the CO2 adsorption capacity of grafted silica-amine sorbents at both atmospheric and combustion concentrations, the decline is significantly more pronounced at low concentrations (400 ppm) compared to high concentrations (5%), with DAS-derived sorbents exhibiting greater overall robustness.
This DFT study elucidates the spontaneous, exothermic, and partially covalent axial coordination of metomidate to iron-porphyrins, revealing key electronic interactions and spin-crossover phenomena that inform the design of potential metomidate sensors.